Steel Tubes [India] Pvt. Ltd offers Carbon/ Alloy Steel made Fasteners. Steel Tubes [India] Pvt. Ltd is an ISO 9001 and ISO 14001 accredited company supplying ferrous and non-ferrous metal products like pipes, tubes, flanges, butt welding and pipe fittings. The Carbon/ Alloy Steel made Fasteners are resistant to corrosion and are available in sturdy construction for different applications in various industrial sectors. The Carbon/ Alloy Steel made Fasteners come in various grades and specifications.